Geoengineered particulate matter (PM), like that from cloud seeding, poses serious health risks. The EPA warns that particles smaller than 10 micrometers can penetrate deep into your lungs or even your bloodstream, triggering heart attacks, asthma, and premature death. Seniors, children, and those with heart or lung conditions face the greatest danger. In places like Colorado’s Front Range, once-famous blue skies are now hazy, with visibility in national parks fading due to PM2.5 pollution. Check AirNow.gov to track local air quality and protect yourself. Simple steps, like using HEPA filters or reducing outdoor exertion on high-PM days, can lower your risk. As states like Tennessee and Florida ban geoengineering, the question looms: are we cooling the planet or gambling with our health?
This article is part two of a two-part series. Read part one here.
Let's unpack what health affects you might experience as a result of particulate exposure, and simple measures you can take to reduce your risk.
Particulate pollution is a mixture of microscopic solids and liquid droplets suspended in air. This pollution, also known as particulate matter, is made up of several components, including gases such as nitrates and sulfates, organic chemicals, metals, soil, or dust particles, and allergens such as fragments of pollen or mold spores.
Small particles less than 10 micrometers in diameter pose the most significant problems. The size of particles is directly linked to their potential for causing health problems. Exposure to such particles can affect both your lungs and your heart. Larger particles are less concerning, although they can irritate your eyes, nose, and throat. Small particles of concern, such as those found in wildfire smoke and Geoengineering haze, which are 2.5 micrometers in diameter or less, and coarse particles, such as those found in windblown dust, which have diameters between 2.5 to10 micrometers, are also a concern.
Who is at risk from geoengineered particulate matter?
People with heart or lung disease, seniors, and children are considered at greater risk for particulate matter exposure, especially when they're physically active.
Exercise, working outdoors, and other physical activity cause people to breathe faster and more deeply, and to take more particles into their lungs. People with heart or lung diseases, such as coronary artery disease, congestive heart failure, and asthma or chronic obstructive pulmonary disease, COPD, are at increased risk, because particles can aggravate these diseases.
People with diabetes may also be at increased risk, possibly because they are more likely to have underlying heart disease.
Seniors are at an increased risk, possibly because they have undiagnosed heart or lung disease or diabetes.
Many studies show that when particulate matter levels are higher, seniors are more likely to be hospitalized, and some may die of aggravated heart or lung disease.
Children are likely at increased risk for several reasons. Their lungs are still developing, they spend more time at high activity levels, and they are more likely to have asthma or acute respiratory diseases, which can be aggravated when particulate levels are high.
How Geoengineered particulate matter affects your health
Particulate matter exposure can lead to a variety of health effects. For example, numerous studies linked particulate levels to increased hospital admissions and emergency room visits, and even to death from heart or lung disease. Both long-term and short-term particulate matter exposures are linked to health problems.

Long-term exposure, such as that experienced by people living for many years with high particulate matter levels, is associated with problems such as reduced lung function, the development of chronic bronchitis, and even premature death.
Short-term exposure to high particulate matter levels for hours or days can aggravate lung disease, causing asthma attacks and acute bronchitis. It may also increase susceptibility to respiratory infections.
For people with heart disease, short-term exposures are linked to heart attacks, arrhythmias, or an irregular heartbeat.
Geoengineered particulate matter exposure symptoms
Even if you're healthy, you may experience temporary symptoms, such as irritation of the eyes, nose, and throat: coughing, phlegm, chest tightness, and shortness of breath. If you have lung disease, you may not be able to breathe as deeply or vigorously as normal, and you may experience coughing, chest discomfort, wheezing, shortness of breath, and unusual fatigue. If you have any of these symptoms, reduce your exposure to particulate matter and follow your doctor's advice.
Contact your doctor if symptoms persist or worsen. If you have asthma, carefully follow your asthma management plan when particulate matter levels are high.
If you have heart disease, particulate matter exposure can cause serious problems in a short period, even heart attacks, with no warning signs. So don't assume that you're safe just because you don't have symptoms.
Symptoms such as chest pain or tightness, palpitations, shortness of breath, or unusual fatigue may indicate a serious problem. If you have any of these symptoms, follow your doctor's advice.
How to protect yourself from geoengineered particulate matter
Your chances of being affected by particulate matter increase the more strenuous the activity and the longer you’re active outdoors. If your activity involves prolonged or heavy exertion, reduce your activity time, or substitute another activity that involves less exertion. Go for a walk instead of a jog, for example. Plan outdoor activities for days when particulate levels are lower. And use an indoor air purifier with a HEPA filter.
EPA's legal authorities controlling solar geoengineering?
Here's where things really become scary. The EPA says it's doing everything within its authority to identify and track any potential solar geoengineering or solar radiation modification (SRM) activities within the United States.
For example, on April 15, 2025, EPA's Office of Air and Radiation (OAR) sent a request to a start-up company called "Make Sunsets," which claims to be geoengineering the planet by releasing balloons filled with sulfur dioxide (SO2) and selling "cooling credits." As of May 2025, Make Sunsets reported releasing about 0.1 tons of sulfur dioxide (SO2) into the stratosphere.
Although the amount of sulfur dioxide (SO2) is extraordinarily low, the EPA is conducting an internal review of current authorities that could be used to stop this activity, particularly if it escalates significantly. But clearly, Make Sunsets isn’t the only company geoengineering the weather.
Alternatively, the EPA is studying whether new authorities would be needed from Congress, or whether another agency should take the lead in regulating and enforcing against such activities.
In addition, any persons planning to engage in solar geoengineering activities that may result in the disposition of material into ocean waters or onto sea ice may need to submit a permit application to EPA under the Marine Protection, Research and Sanctuaries Act (MPRSA), based on multiple factors such as the location and type of disposition.
As of July 2025, the EPA has issued only one MPRSA permit for a marine carbon dioxide removal research project. These approaches have the potential to impact marine environments, according to the EPA.

What the U.S. government does to track geoengineering?
Congress hasn't passed any law solely related to solar geoengineering, though several laws are relevant. In other words, geoengineering may or may not be legal.
For example, under the authority of the Weather Modification Reporting Act (WMRA) of 1972, all persons intending to engage in weather modification activities in the United States are required to provide a report to the National Oceanic and Atmospheric Administration (NOAA) at least 10 days prior to undertaking the activity. However, only one permit is on file.
Under Part 908.3 of Title 15 of the Code of Federal Regulations, reporting requirements for weather modification encompass solar geoengineering activities "modifying the solar radiation exchange of the earth or clouds, through the release of gases, dusts, liquids, or aerosols into the atmosphere."
While NOAA doesn't regulate weather modification activities, it does track them through WMRA reporting requirements. A public database of NOAA weather modification reports can be viewed here: Weather Modification Project Reports.
In 2022, Congress directed the Office of Science and Technology Policy (OSTP), with support from NOAA and in coordination with the National Science Foundation (NSF) and the Department of Energy (DOE), to develop a five-year federal research plan for "solar and other rapid climate interventions." [1] The resulting 2023 Biden Administration Report to Congress concluded that the development of a federal research program on solar geoengineering would help to better inform decisions on the potential risks and benefits and help prepare for possible deployment by other public or private actors.
To be clear. Geoengineering is happening, but in 2023, our government decided that it should begin studying the impact of solar geoengineering.
The report also emphasized that any solar geoengineering research program should encompass both the scientific dimensions of solar geoengineering as well as the potential impacts on human health and well-being, ecosystems, and international engagement.
Talk about putting the cart before the horse.
Current federal research is designed to improve the ability to observe current conditions in the atmosphere and the understanding of the potential physical impacts of solar geoengineering.
The U.S. government is not engaged in any form of outdoor testing (e.g., small-scale experiments designed to study injection technologies) or large-scale deployment (e.g., intentional use of solar geoengineering to cool the Earth), according to the EPA.
Current federal research activity should not be interpreted as endorsement of the implementation of solar geoengineering, the EPA continued.

In other words, although EPA Administrator Lee Zeldin and the EPA's website confirms what geoengineering is, that it's happening in the skies over the U.S., that there are known health and environmental hazards to cloud seeding, it's still unclear which governmental, commercial, and possibly foreign entities are rapidly manipulating the weather over America daily.
The EPA's pathetic attempt to address the constant geoengineering airplane spray in our skies was to scapegoat a Silicon Valley start-up company — "Make Sunsets." But Make Sunsets' activities are very small-scale. It also doesn't account for the hundreds of thousands of flights logged by ordinary citizens using flight tracking apps to catalog unspecified planes, American and international commercial airplanes, and private planes spraying the skies over their communities every day.
However, with the groundswell of concern from ordinary citizens, there are a growing number of states who have passed legislation banning geoengineering and weather modification activities
Tennessee passed legislation banning geoengineering and weather modification activities, effective July 1, 2024. The law prohibits the intentional release of chemicals or substances into the atmosphere to affect weather or sunlight intensity, driven partly by concerns over "chemtrails" and geoengineering.
Florida passed a law, effective July 1, 2025, banning geoengineering and weather modification, including cloud seeding, with fines up to $100,000 per violation. The bill, SB 36, was signed by Governor Ron DeSantis and repeals prior regulations allowing weather modification.
As of early 2025, at least 30 states have introduced or are considering legislation to prohibit geoengineering, weather modification, or activities associated with chemtrails and geoengineering. These states include:
Arizona Legislation passed the state Senate but is not yet law.
Kentucky Senate Bill 62 and House Bill 22 were introduced in 2025 to ban geoengineering, with penalties including fines and felony charges.
Iowa House File 191 and Senate File 142 propose bans on geoengineering and weather modification, with the Senate version including felony penalties.
Louisiana A bill passed the state House in 2025, requiring the Department of Environmental Quality to record "chemtrail" sightings, but it awaits Senate approval.
Alabama A legislative committee discussed a similar bill in early 2025.
Illinois, Minnesota, New Hampshire, Pennsylvania, Rhode Island, and South Dakota. These states introduced or previewed anti-geoengineering bills in 2024 or 2025, but none have passed. Up to 31 states have proposed such legislation, including Michigan and others not individually named in the provided sources, though specific bill statuses remain unclear.
Historical precedent exists in. Pennsylvania, Maryland, and West Virginia since the 1960s, where laws were enacted to restrict weather modification.
On July 5, 2025, Representative Marjorie Taylor Greene sponsored a bill with co-sponsor Tim Burchett. In Summary, “the bill prohibits the injection, release, or dispersion of chemicals or substances into the atmosphere for the express purpose of altering weather, temperature, climate, or sunlight intensity. It will be a felony offense,” Greene writes.
Finally, the Mystic Bill authored by Steve Jarvis will be ready this Wednesday, July 16th! This legislation can potentially represent all 50 States. The bill is written to address every Governor, Attorney General and House Representative. Join your local 'The Clear Skies Movement,' on X.
Conclusion
The revelation of geoengineering in America's skies is a wake-up call. EPA Administrator Lee Zeldin's admission on July 10, 2025, confirms that weather manipulation is real, raising urgent questions about health risks, environmental damage, and who’s pulling the strings. From sulfur dioxide's impact on lungs to acid rain threatening crops, the stakes are high. Yet, the EPA admits uncertainties in understanding geoengineering’s full consequences. As the government scrambles to track these activities, we must demand transparency and accountability. Are we cooling the planet or gambling with our future? Stay vigilant — our health, ecosystems, and food security depend on it. Check AirNow.gov to monitor air quality and protect yourself from particulate matter. The truth is out: geoengineering is happening, and it’s time to act!
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Citation List
American Lung Association - Sulfur Dioxide Effects
Oklahoma State University - Acidic Soil Impacts
NOAA Weather Modification Project Reports
2023 Biden Administration Report to Congress on Solar Geoengineering
Goulson, D. (2021). Silent Earth: Averting the Insect Apocalypse. HarperCollins.
National Oceanic and Atmospheric Administration. (2023). "Cloud Seeding Explained." NOAA.gov.
Ellis, S. (2023). Personal interview with beekeeper, Minnesota.
USDA. (2025). "Crop Production Report: Northern Hemisphere, April 2025." USDA.gov.
